{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["content container", "message topic", "cause effect", "component whole"], "input": "the cover of the magazine featured the famous image of einstein taken in 1947 by american portrait photographer philippe halsman ."}
{"content container": [], "message topic": [], "cause effect": [], "component whole": [{"subject": "cover", "object": "magazine"}]}